Tsukino Hououin

Oregano(Organ) is introduced as a "Medical Specialist Angeloid" and is one of the many Angeloids often shown cleaning up a small residence on Synapse. When Sugata was returning from a dive game, Oregano somehow manages to follow him back to Earth. Sugata then brought her to Tomokiand asked him to take care of her. But when Tomoki refused on the grounds that he was in financial difficulties, Mikako decides to take her in. Due to her personality and striking resemblance to Ikaros, Tomoki sometimes refers to her as "Miniros."

Personality
- According to Nymph, Oregano has little to no speech or emotional capabilities.

- However, Mikako installed speech functions in her after she moved in, claiming it was "too sad to not be able to speak"

- Oregano has then gained a split personality, shy and quiet when Tomoki is around and passing mean remarks while he isn't. As shown when she calls Nymph a midget and during their fight she calls her "seaweed."

-Oregano is aggressive with nymph, because she made all the oregano angeloids hear the nymph's singing.

- she has the same battle characteristics as Mikako using deadly firearms as her weapon of choice and ridicules her opponent with their weaknesses, this could be seen when Oregano insults Nymph, saying she has a flat chest, and when she battles Nymph in the "Angeloid World Martial Arts Competition" when she defeats Nymph using various firearms.